Amane, a junior high school student, lives with her uncle "Yuki-chan" after her parents died early. One day, however, she cuts her hand on a book in the library, which summons a demon (very beautiful) from another world. Amane makes a contract with the (very beautiful) demon for Yuki-chan's sake, but because of it, she ends up becoming an "immigration consultant from another world for demons who are suffering from population growth. A new fantasy story about a human and a foreigner.